In this extensive lining project at the Tasiast operation's waste storage facility, a composite liner system designed on a triple-barrier concept was deployed to the field: GCL (geosynthetic clay liner) at the bottom layer, HDPE geomembrane above it, and heavy-weight geotextile for mechanical protection. During GCL deployment, hydration control under low-moisture conditions and bentonite supplementation at overlapping strips were distinct items requiring attention in the site's extremely arid climate.

In the installation operation spread over a large surface area, the main workflow was organized such that geomembrane panels were secured against wind load using temporary ballast methods, with welding crews stepping in immediately afterward. The continuous trade wind from the northeast became the most critical operational risk factor during panel lifting and deployment.

During the pre-handover inspection of each layer, it was verified that the geotextile was positioned to preserve the free-fall impact resistance against the risk of puncturing the underlying geomembrane; this was executed in compliance with the design requirements determined by considering the grain size distribution of the waste material to be stored.